the preparation of air–fuel mixture is considerably dependent on fluid flow dynamics to achieve improved performance, efficiency, and engine combustion in the appearance of flow. in this study, the effects of mixtures of hydrogen and compressed natural gas (cng) on a spark ignition engine are numerically considered. this article presents the results of a direct-injection engine using methane–hy...

The polymer flooding of ordinary heavy oil reservoirs in Bohai Sea can improve the crude recovery by advancing injection time flooding. better is, higher enhanced and greater income is. Based on Oilfield, application system was characterized laboratory, then experiments were carried out at different times using one-dimensional core model. results show that: 1) AP-P4 establish good mobility cont...